1.Cor2,1 When I came to you, brothers, I did not come with eloquence or superior wisdom as I proclaimed to you the testimony about God. > Eloquence and super great wisdom is not the point AT ALL! 
2 For I resolved to know nothing while I was with you except Jesus Christ and him crucified. > Paul just was focusing, talking about, remembering: Jesus Christ & that Jesus christ was crucified.
The life of Jesus and the death of Jesus.
When i would just know Jesus as it is written in the Gospel of John.
When i would just know Jesus killed on a cross.
What would that do to me. - Interesting, that he does not say: Christ raised. Maybe because the raising part only God can do. But the dying part - i have my free will to go so far! Jesus went so far. Love let him go so far.
Jesus lieved and died. God raised him. God did the miracles through him.
3 I came to you in weakness and fear, and with much trembling. > How Paul was:
WEAKNESS
FEAR
TREMBLING
I try to see Paul. How he comes in weak. How he is filled up with fear. So much, that he is trembling.
What would i do then. Paul still kept on going. Paul did not stop even the fear was shaking him. Even everybody saw his fear and all his weaknesses. Paul kept on going
What ever i feel:
CHRISTOPH, KEEP ON GOING!4 My message and my preaching were not with wise and persuasive words, but with a demonstration of the Spirit's power, > Wow - never saw that before. He was not the Francis Chan or the Andy Standly. He was not wise and he was not persuasive.
BUT THROUGH PAULS PREACHING
THE SPIRIT COULD DEMONSTRATE HIS POWER
How do i preach like that?
How do i behave and be like that, so the Spirit is able to demonstrate HIS POWER?
But also it is clear: Wisdom and persuasive words are not necessary for the spirit.
5 so that your faith might not rest on men's wisdom, but on God's power.
God's power is the only thing what i would like to experience and give.

STILL I DO NOT KNOW HOW CAN I BEHAVE, THAT THE SPIRIT CAN DEMONSTRATE HIS POWER. 
HOW CAN I PREACH THAT THE FAITH OF THE PEOPLE LISTENING IS RESTING ON GOD's POWER.
?

I do not know!

I can be fearful and weak and trembling - STILL: God's power can be visible. Still the power of the Holy Spirit can come through!

Christoph: Don't worry so much about your fears and weaknesses and your lake of wisdom.
The Holy Spirit is in me.

MY MESSAGE STILL CAN BE A DEMONSTRATION OF THE SPIRIT's POWER. MY MESSAGE STILL CAN GIVE PEOPLE REST ON GOD's POWER.

CHRISTOPH: Just don't stop because you feel fearful ore unwise ore trembling and full of weakness. Just keep on going. The Spirit is in me. God is every where!
KEEP ON GOING!
KEEP ON GOING!
KEEP ON GOING!
KEEP ON GOING!